Jack by Melissa Devenport

It starts as an innocent, but really hot, fling between two strangers.
Company Christmas parties are notorious for their morning after regrets. This couple manages to take it to a completely new level.
Jack’s charming and flawless exterior easily disguises the introvert bad boy hiding underneath. Not even his expensive and powerful motorcycle changes this. No one suspects that the streets he once called home were paved with misery and pain, if paved at all. Now he signals nothing but money, good taste and breeding.
Tia, who will officially start her new job on Monday, has no idea that the hot biker is her new boss. Neither does he. Her wide-eyed, windblown, fairy-child look makes her as beautiful as her dark hair is long.
What could have been excused as a tipsy and romantic adventure soon grows out of hand to become a full-blown disaster. But when soulmates meet they rarely give up…